http://www.freshpatents.com/Machine-element-or-mechanism-dtnewntc074.php USPTO Class 074 - Machine element or mechanism en-us Wed, 15 Oct 2008 02:53:33 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Roller-screw-dt20081009ptan20080245170.php Wed, 15 Oct 2008 02:53:33 -0700 A roller screw is provided having a structure suitable for circulating rollers. The roller screw has a screw shaft 5 with a spiral roller rolling groove 5a formed on an outer peripheral surface thereof; a nut 6 with a spiral roller rolling groove 6a opposed to the roller rolling groove...